Enabling rechargeable Li‐MnO <sub>2</sub> batteries using ether electrolytes
نویسندگان
چکیده
A low-carbon future demands more affordable batteries utilizing abundant elements with sustainable end-of-life battery management. Despite the economic and environmental advantages of Li-MnO2 batteries, their application so far has been largely constrained to primary batteries. Here, we demonstrate that one major limiting factors preventing stable cycling Mn dissolution, can be effectively mitigated by employing a common ether electrolyte, 1 mol/L lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) in 1,3-dioxane (DOL)/1,2-dimethoxyethane (DME). We discover suppression this dissolution enables highly reversible MnO2 cathode regardless synthesized phase morphology. Moreover, find both LiPF6 salt carbonate solvents present conventional electrolytes are responsible for previous challenges. The paired cathodes is able performance at various rates, even elevated temperature such as 60°C. Our discovery not only represents defining step extended life but provides design criteria vast manganese-based rechargeable
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ژورنال
عنوان ژورنال: SmartMat
سال: 2023
ISSN: ['2766-8525', '2688-819X']
DOI: https://doi.org/10.1002/smm2.1208